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[BUG] Warning on login screen after update beyond 15.7.0-ls322 #89
Description
Is there an existing issue for this?
- I have searched the existing issues
Current Behavior
After upgrade beyond 15.7.0-ls322 errors seen on identification.php both pre-login and post-login. This occurs on two separate systems. Everything works until a login is attempted.
The error on identification.php is:
Warning: filemtime(): stat failed for ./themes/standard_pages/theme.css in /app/www/public/include/template.class.php on line 1925
Warning: file_get_contents(./themes/standard_pages/theme.css): Failed to open stream: No such file or directory in /app/www/public/include/template.class.php on line 2021
I rolled back, ensured all plugins up-to-date and then tried again with same issue
After attempting to login on one of my systems, I get an empty browser window apart from the error:
Uncaught --> Smarty: Plugin tag 'cssGradient' already registered <-- thrown in /app/www/public/include/smarty/src/Smarty.php on line 751
I am assuming that this is due to the existence of a plugin on this system? Deleting the cookies is the only way to get back to the 'logged out' state from this screen.
Update: Rolled back, updated plugins, rolled forward to latest again and this secondary error post-login is no longer present.
I have 'resolved' the warnings at login by rolling back both installs to 15.7.0-ls322
I am using docker-compose
Expected Behavior
Login completes without errors/warnings
Steps To Reproduce
- Upgrade from 15.7.0-ls322 to 16.1.0-ls322
- Site works, however
- Attempt to login
- --> Warnings seen on login screen
- Enter valid username/password
- --> White screen with error text: 'Uncaught --> Smarty: Plugin tag 'cssGradient' already registered'
Environment
- OS: Asustor NAS (ADM)
- How docker service was installed: package managerCPU architecture
x86-64
Docker creation
services:
db:
container_name: piwigo-omc-db
image: mariadb:latest
command: '--default-authentication-plugin=mysql_native_password'
volumes:
- db:/var/lib/mysql
restart: always
environment:
- MYSQL_ROOT_PASSWORD=**************************
- MYSQL_DATABASE=*******************
- MYSQL_USER=*****************
- MYSQL_PASSWORD=*******************
expose:
- 3306
piwigo:
container_name: piwigo-omc-web
depends_on:
- db
image: ghcr.io/linuxserver/piwigo:latest
environment:
- TZ=Europe/London
volumes:
- config:/config
- gallery:/gallery
ports:
- 20094:80
restart: unless-stopped
volumes:
db:
config:
gallery:Container logs
[migrations] started
[migrations] 01-nginx-site-confs-default: skipped
[migrations] done
usermod: no changes
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GID/UID
───────────────────────────────────────
User UID: 911
User GID: 911
───────────────────────────────────────
Linuxserver.io version: 16.1.0-ls322
Build-date: 2025-12-02T16:58:12+00:00
───────────────────────────────────────
using keys found in /config/keys
[custom-init] No custom files found, skipping...
[04-Dec-2025 10:50:06] NOTICE: PHP message: PHP Warning: PHP Startup: Invalid date.timezone value 'UK', using 'UTC' instead in Unknown on line 0
[ls.io-init] done.
Activity
github-actions commentedon Dec 4, 2025
Thanks for opening your first issue here! Be sure to follow the relevant issue templates, or risk having this issue marked as invalid.
joelkrueger commentedon Dec 20, 2025
After upgrading from 15.7.0 to 16.1.0 I am also seeing the "Warning: filemtime(): stat failed for ./themes/standard_pages/theme.css in /app/www/public/include/template.class.php on line 1925" on the login screen. I am not seeing the reported second "Warning: file_get_contents". I have not bothered to attempt to roll back, Aside from this warning on the login screen everything else seems to be working fine and I content to wait for a fix.
thokich commentedon Dec 26, 2025
I have the same BUG.
docker exec -it piwigo ls -l /app/www/public/themes/
default
elegant
modus
smartpocket
no standard_pages.